Majumdar, S., S. Bhattacharya, P. Kundu, and K. Bhattacharya. “Unilateral Variation in the Position of Internal and External Carotid Arteries”. Italian Journal of Anatomy and Embryology, vol. 118, no. 2, Aug. 2013, pp. 177-83, https://oajournals.fupress.net/index.php/ijae/article/view/1177.